'''31 October''' is the 304th day of the year (305th in leap years), known for being the date of '''[[Hallowe'en]]'''. There are 61 days remaining in the year.

'''31 October''' is the 304th day of the year (305th in leap years), known for being the date of '''[[Hallowe'en]]'''. There are 61 days remaining in the year.

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*[[1490s|1492]]: [[Nicholas de Mimsy-Porpington|Sir Nicholas de Mimsy-Porpington]] is executed after accidentally growing a tusk on [[Grieve|Lady Grieve]].

*[[1490s|1492]]: [[Nicholas de Mimsy-Porpington|Sir Nicholas de Mimsy-Porpington]] is executed after accidentally growing a tusk on [[Grieve|Lady Grieve]].

*[[1981]]: [[Tom Riddle|Lord Voldemort]] murders [[James Potter I|James]] and [[Lily Evans|Lily Potter]] at [[Godric's Hollow]] and is defeated for the first time when he fails to kill [[Harry Potter]]. The [[First Wizarding War]] ends.

*[[1981]]: [[Tom Riddle|Lord Voldemort]] murders [[James Potter I|James]] and [[Lily Evans|Lily Potter]] at [[Godric's Hollow]] and is defeated for the first time when he fails to kill [[Harry Potter]]. The [[First Wizarding War]] ends.

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*[[1991]]: The [[first year]] [[Charms (class)|Charms]] class topic is ''[[Hover Charm|Wingardium Leviosa]]'', the hover charm. Later, the [[Halloween feast]] is interrupted by the arrival of a [[Quirinus Quirrell's first mountain troll|Mountain Troll]]. [[Harry Potter]] and [[Ronald Weasley|Ron Weasley]] save [[Hermione Granger]] from the Troll in the girls' bathroom. [[Quirinus Quirrell|Professor Quirrell]] attempts to steal the [[Philosopher's Stone]], but is thwarted by [[Severus Snape]], who is attacked by [[Fluffy]] as a result.

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*[[1991]]: The [[first year]] [[Charms (class)|Charms]] class topic is ''[[Hover Charm|Wingardium Leviosa]]'', the hover charm. Later, the [[Hallowe'en feast]] is interrupted by the arrival of a [[Quirinus Quirrell's first mountain troll|Mountain Troll]]. [[Harry Potter]] and [[Ronald Weasley|Ron Weasley]] save [[Hermione Granger]] from the Troll in the girls' bathroom. [[Quirinus Quirrell|Professor Quirrell]] attempts to steal the [[Philosopher's Stone]], but is thwarted by [[Severus Snape]], who is attacked by [[Fluffy]] as a result.

*[[1992]]: [[Nicholas de Mimsy-Porpington's five-hundredth Deathday Party|Sir Nicholas de Mimsy Porpington's 500th Deathday Party]] takes place in one of the roomier dungeons at [[Hogwarts Castle|Hogwarts]], and it is attended by many ghosts, [[Harry Potter]], [[Ronald Weasley|Ron Weasley]], and [[Hermione Granger]]. [[Ginevra Weasley|Ginny Weasley]], under the influence of [[Tom Riddle's Diary]], opens the [[Chamber of Secrets]] for the first time in fifty years. The [[Salazar Slytherin's Basilisk|basilisk]] that is released from the Chamber [[Petrification|petrifies]] [[Mrs. Norris]].

*[[1992]]: [[Nicholas de Mimsy-Porpington's five-hundredth Deathday Party|Sir Nicholas de Mimsy Porpington's 500th Deathday Party]] takes place in one of the roomier dungeons at [[Hogwarts Castle|Hogwarts]], and it is attended by many ghosts, [[Harry Potter]], [[Ronald Weasley|Ron Weasley]], and [[Hermione Granger]]. [[Ginevra Weasley|Ginny Weasley]], under the influence of [[Tom Riddle's Diary]], opens the [[Chamber of Secrets]] for the first time in fifty years. The [[Salazar Slytherin's Basilisk|basilisk]] that is released from the Chamber [[Petrification|petrifies]] [[Mrs. Norris]].

*[[1993]]: [[Sirius Black]] enters [[Hogwarts Castle]] and attacks the [[Fat Lady]] when she refuses to give him passage to [[Gryffindor Tower]]. For security, all the students sleep in the [[Great Hall]] while the castle is being searched for any sign of Black.

*[[1993]]: [[Sirius Black]] enters [[Hogwarts Castle]] and attacks the [[Fat Lady]] when she refuses to give him passage to [[Gryffindor Tower]]. For security, all the students sleep in the [[Great Hall]] while the castle is being searched for any sign of Black.

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*[[1994]]: At breakfast time, [[Fred and George Weasley]] fail to pass Dumbledore's [[Age Line]] around the [[Goblet of Fire]] with an [[Ageing Potion]]. Later that day, [[Harry Potter]], [[Ronald Weasley|Ron Weasley]], and [[Hermione Granger]] visit [[Rubeus Hagrid]] and discover that he has a crush on [[Olympe Maxime]]. The [[Halloween feast]] takes place at dinnertime and after it, the [[Goblet of Fire]] chooses the [[Triwizard Tournament|Triwizard]] champions — [[Viktor Krum]] for [[Durmstrang Institute|Durmstrang]]; [[Fleur Delacour]] for [[Beauxbatons Academy of Magic|Beauxbatons]]; [[Cedric Diggory]] for [[Hogwarts School of Witchcraft and Wizardry|Hogwarts]] and an unexpected fourth champion — [[Harry Potter]].

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*[[1994]]: At breakfast time, [[Fred and George Weasley]] fail to pass Dumbledore's [[Age Line]] around the [[Goblet of Fire]] with an [[Ageing Potion]]. Later that day, [[Harry Potter]], [[Ronald Weasley|Ron Weasley]], and [[Hermione Granger]] visit [[Rubeus Hagrid]] and discover that he has a crush on [[Olympe Maxime]]. The [[Hallowe'en feast]] takes place at dinnertime and after it, the [[Goblet of Fire]] chooses the [[Triwizard Tournament|Triwizard]] champions — [[Viktor Krum]] for [[Durmstrang Institute|Durmstrang]]; [[Fleur Delacour]] for [[Beauxbatons Academy of Magic|Beauxbatons]]; [[Cedric Diggory]] for [[Hogwarts School of Witchcraft and Wizardry|Hogwarts]] and an unexpected fourth champion — [[Harry Potter]].